It has already ended in the states, many of years ago...It's Europe, that's now getting into the HP race..All along they have been concerned with making well designed vehicles that are economical to compensate for high fuel prices..With the exception of the Italians in which everyone drives 50+ mpg scooters, and only the riches of the rich drive Ferrari's and Lambo's..But now Euro car manufacturers' are taking on the American muscle genre in a different, more refined way...I hate to say it, but Japanese and Euro car manufacturers have always been ahead of the game as compared to U.S. car makers..in which are solely out to make profit instead of competing with the rest of the world..Make cars/trucks cheaply, sell plenty.. How many piss on BMW/Merc/Porsche stickers do you see on the streets?

I do have to say that I'm somewhat impressed by GM and their LS7..
7.0 Liter displacement, CNC??(variable valve timing, I guess), and dry sump oil system...

Why do you think it has ended here with cars like the Mustang GT500(450 HP est.) in the pipeline?